hub-core/workplans/HUB-WP-0002-import-refactor-adapter-seams.md

id, type, title, domain, repo, status, owner, topic_slug, created, updated, state_hub_workstream_id

id	type	title	domain	repo	status	owner	topic_slug	created	updated	state_hub_workstream_id
HUB-WP-0002	workplan	Import-refactor adapter seams for State Hub closeout	inter_hub	hub-core	ready	codex	inter_hub	2026-06-22	2026-06-22	439b559b-fcb7-4d21-b831-cfc9c6bbc1a0

Import-refactor adapter seams for State Hub closeout

Goal

Finish the hub-core side of CUST-WP-0048 so State Hub can close the capability-request write workflow and generic MCP split without forking shared primitives.

Child workplan: ~/the-custodian/workplans/CUST-WP-0048-hub-core-state-hub-import-refactor.md Boundary reference: ~/the-custodian/docs/hub-core-extraction-boundary.md

hub-core already owns read paths, generic JSON adapter fields (subject_refs, request_context, fulfillment_context), and HubCoreMCPServer. Remaining seams are write workflows and host MCP composition.

Capability Request Write Router Factory

id: HUB-WP-0002-T01
status: todo
priority: high
state_hub_task_id: "f2e0a8a1-1943-4d40-963b-3d736d2340bf"

Add a create_capability_request_write_router factory with host-injected models, schemas, and workflow callbacks for:

• request creation
• acceptance
• status transitions
• patch / dispute / reroute paths that today live in State Hub

Callbacks must cover dev-hub side effects (flow transitions, notifications, task-unblock) without pulling workstream/task foreign keys into hub-core models.

Done when: State Hub can mount write routes from the factory; hub-core tests cover callback invocation and route registration.

MCP Server Composition Hooks

id: HUB-WP-0002-T02
status: todo
priority: medium

Extend HubCoreMCPServer so State Hub can compose or subclass it while keeping dev-hub-only tools local. Provide a clear registration seam for host tools and document which ~17 generic tools stay in hub-core.

Done when: State Hub MCP module imports HubCoreMCPServer for generic tools without duplicating orientation, messaging, capability, repo, TPSC, DoI, or risk/alert registrations.

Regression And Boundary Update

id: HUB-WP-0002-T03
status: todo
priority: high

After T01–T02 land (or are explicitly deferred with documented seams):

• run full hub-core pytest and ~/state-hub regression
• update hub-core-extraction-boundary.md with resolved couplings and any deferred adapter points
• hand results back so CUST-WP-0048 T05–T07 can close

Done when: both test suites pass and the extraction boundary reflects the new write/MCP seams.